Sensors fault diagnosis and fault tolerant control for grid connected PV system

Youssef, Fatma Ben; Sbita, Lassaâd

doi:10.1016/j.ijhydene.2016.11.147

Cited by 23 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [ 75 ], the author presented an open-circuit fault detection method for a grid-connected neutral-point clamped (NPC) inverter system. In [ 76 ], the author analyzed the currents and voltages sensors fault detection and isolation methods are presented. The proposed method is based on residual generation by models references adaptive systems estimators and virtual flux estimator.…”

Section: Application Statuses Of Wsns In Ubiquitous Power Internet Of...mentioning

confidence: 99%

Analysis and Prospect of the Application of Wireless Sensor Networks in Ubiquitous Power Internet of Things

Cao

Wang

Yue

2022

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

With the rapid development of the economy and society, the low efficiency and high loss of the traditional power grid can no longer meet the growing social demand, and the power grid market is facing a reform. Smart grid, as a next-generation power system, it can effectively improve the performance of traditional power grids. The ubiquitous power Internet of Things (UPIOT) replaces the traditional grids with efficient, safe, reliable, and flexible new grids, improves the utilization efficiency of the grid, reduces the loss of the power grid in the transmission process, and can meet the needs of different types of markets and users. As an advanced information acquisition and processing technology, wireless sensor networks have been widely used in medical, industrial, agricultural, commercial, and public management fields. It is an important means to promote future economic development and build a harmonious society. In the power system, wireless sensor network technology can be widely used in many fields such as line fault location, real-time monitoring, smart meter reading, and relay protection. In this paper, the basic concepts and overall architecture of ubiquitous power Internet of Things are summarized. Then, we summarize the research status of the wireless sensor network in smart grid, including power equipment, line monitoring, smart grid wireless automatic meter reading, distribution network relay protection, power assets life-cycle management, power grid fault location, and power grid fault diagnosis. In view of the technical characteristics of wireless sensor networks, combined with the production links of power systems, the application framework of wireless sensor network technology in the power systems is constructed. The application of wireless sensor networks is prospected from the aspects of network development of relay protection, application research of smart substation, application research of power grid catastrophe, security protection of power system, and deep-seated ubiquitous power Internet of Things.

show abstract

Section: Application Statuses Of Wsns In Ubiquitous Power Internet Of...mentioning

confidence: 99%

Analysis and Prospect of the Application of Wireless Sensor Networks in Ubiquitous Power Internet of Things

Cao

Wang

Yue

2022

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

show abstract

“…Assumption 3 remains true; ii. the sliding surface is chosen as (26); iii. the equivalent control law u eq as ( 31) (with detailed expression as ( 33)); iv.…”

Section: Certainty-equivalence-based Robust Sliding Mode Control (Cer...mentioning

confidence: 99%

“…This is a straightforward and effective process; however, it has several problems, such as large space requirements, extra weight, and high cost. The second fault-diagnosis approach is based on analytical redundancy, which depends on the available sensor information, PV system dynamics, and PV system modeling [26]. In [27], several fault-diagnosis techniques for PV cell has been proposed.…”

Section: Introductionmentioning

confidence: 99%

Certainty-Equivalence-Based Sensorless Robust Sliding Mode Control for Maximum Power Extraction of an Uncertain Photovoltaic System

Alam

Khan

et al. 2022

Energies

View full text Add to dashboard Cite

Photovoltaic (PV) arrays and their electronic converters are subject to various environmental disturbances and component-related faults that affect their normal operations and result in a considerable energy loss. Therefore, it is ever demanding to design such closed-loop operating algorithms that tolerate faults, present acceptable performance, and avoid wear and tear in the systems. In this work, the core objective is to extract maximum power from a PV array subject to environmental disturbances and plant uncertainties. The system is considered under input channel uncertainties (i.e., faults) along with variable resistive load and charging stations. A neuro-fuzzy network (NFN)-based reference voltage is generated to extract maximum power while considering variable temperature and irradiance as inputs. Furthermore, the estimated reference is tracked by the actual PV voltage under two types of controllers: certainty-equivalence-based robust sliding mode (CERSMC) and certainty-equivalence-based robust integral sliding mode (CERISMC). These strategies benefit from improving the robustness against faults (disturbances). The proposed methods use the inductor current, which is recovered via the velocity observer and the flatness property of nonlinear systems. The system’s stability is proven in the form of very appealing theorems. These claims are validated by the simulation results, which are carried out in a MATLAB environment.

show abstract

“…For PV grid-connected systems there are many studies on the closed-loop control. However, for the purpose of health monitoring, most of the studies are conducted considering that the system is in open loop, which is not the usual case [7][8][9]. Moreover, fault diagnosis of PV systems cannot ignore the variability of the irradiance and the temperature induced by the environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

A Fault Diagnosis Strategy Based on Multilevel Classification for a Cascaded Photovoltaic Grid-Connected Inverter

2020

View full text Add to dashboard Cite

In this paper, an effective strategy is presented to realize IGBT open-circuit fault diagnosis for closed-loop cascaded photovoltaic (PV) grid-connected inverters. The approach is based on the analysis of the inverter output voltage time waveforms in healthy and faulty conditions. It is mainly composed of two parts. The first part is to select the similar faults based on Euclidean distance and set the specific labels. The second part is the classification based on Principal Component Analysis and Support Vector Machine. The classification is done in two steps. In the first, similar faults are grouped to do the preliminary diagnosis of all fault types. In the second step the similar faults are discriminated. Compared with existing fault diagnosis strategies for several fundamental periods and under different external environments, the proposed strategy has better robustness and higher fault diagnosis accuracy. The effectiveness of the proposed fault diagnosis strategy is assessed through simulation results.

show abstract

Sensors fault diagnosis and fault tolerant control for grid connected PV system

Cited by 23 publications

References 32 publications

Analysis and Prospect of the Application of Wireless Sensor Networks in Ubiquitous Power Internet of Things

Analysis and Prospect of the Application of Wireless Sensor Networks in Ubiquitous Power Internet of Things

Certainty-Equivalence-Based Sensorless Robust Sliding Mode Control for Maximum Power Extraction of an Uncertain Photovoltaic System

A Fault Diagnosis Strategy Based on Multilevel Classification for a Cascaded Photovoltaic Grid-Connected Inverter

Contact Info

Product

Resources

About